XC2C256-7TQG144C QFP144 xilinx chips 1.8V Kuchuluka kwa zotulutsa 118 FLASH PLD IC zamagetsi

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 Chida chosavuta chokonzekera (CPLD) ndi chipangizo chomveka chomwe chili ndi pulogalamu yokhazikika NDI/OR magulu ndi ma macrocell.Macrocells ndiye midadada yomangira ya CPLD, yomwe imakhala ndi machitidwe ovuta komanso malingaliro ogwiritsira ntchito mawu osagwirizana.NDI/OR magulu amathanso kukonzedwanso ndipo ali ndi udindo wochita ntchito zosiyanasiyana zolingalira.Ma macrocell amathanso kufotokozedwa ngati midadada yogwira ntchito yomwe imagwira ntchito motsatizana kapena mophatikizana.

 Chida chomangika chosavuta kupanga ndi chopangidwa mwaluso poyerekeza ndi zida zam'mbuyomu monga programmable logic arrays (PLAs) ndi Programmable Array Logic (PAL).Zida zomveka zoyambilira sizinali zosinthika, chifukwa chake lingalirolo lidapangidwa ndikuphatikiza tchipisi tambiri tambiri pamodzi.CPLD ili ndi zovuta pakati pa PALs ndi field-programmable gate arrays (FPGAs).Ilinso ndi zomanga za PALs ndi FPGAs.Kusiyana kwakukulu kwa zomangamanga pakati pa CPLD ndi FPGA ndikuti ma FPGA amatengera matebulo owonera, pomwe ma CPLD amakhazikika pazipata zanyanja.

Zodziwika bwino za ma CPLD ndi ma FPGA ndikuti onse ali ndi zipata zambiri komanso zosinthika zosinthika.Pomwe zodziwika bwino pakati pa CPLDs ndi PALs zimaphatikizapo kukumbukira kosinthika kosasinthika.Ma CPLD ndi atsogoleri pamsika wa zida zosinthika, okhala ndi maubwino angapo monga mapulogalamu apamwamba, otsika mtengo, osasinthika komanso osavuta kugwiritsa ntchito.

 Achipangizo chosavuta chokonzekera(CPLD) ndi alogical devicendi zovuta pakati paPALsndiFPGAs, ndi zomangamanga zonse ziwiri.Chomangira chachikulu cha CPLD ndimacrocell, yomwe ili ndi logic kukhazikitsadisjunctive yachibadwa mawonekedwemawu ndi machitidwe apadera omveka bwino.

Mawonekedwe[sinthani]

Zina mwazinthu za CPLD ndizofananaPALs:

• Non-volatile kasinthidwe kukumbukira.Mosiyana ndi ma FPGA ambiri, kasinthidwe kakunjaRomsikofunikira, ndipo CPLD imatha kugwira ntchito nthawi yomweyo poyambitsa dongosolo.
• Pazida zambiri za CPLD, mayendedwe amalepheretsa midadada yambiri kuti ikhale ndi zolowetsa ndi zotulutsa zolumikizidwa ndi mapini akunja, kuchepetsa mwayi wosungira mkati mwa boma komanso malingaliro ozama.Izi nthawi zambiri sizomwe zimapangidwira ma CPLD akuluakulu komanso mabanja atsopano a CPLD.

Zina ndi zofanana ndiFPGAs:

• Zipata zambiri zomwe zilipo.Ma CPLD nthawi zambiri amakhala ndi zofanana ndi masauzande mpaka makumi masauzandezipata za logic, kulola kukhazikitsidwa kwa zida zosinthira deta zovuta kwambiri.Ma PAL nthawi zambiri amakhala ndi zipata mazana ochepa kwambiri, pomwe ma FPGA nthawi zambiri amakhala kuchokera pa masauzande mpaka mamiliyoni angapo.
• Makonzedwe ena a logic osinthika kuposakuchuluka kwazinthumawu, kuphatikiza njira zovuta zofotokozera pakati pa ma cell akuluakulu, ndi malingaliro apadera ogwiritsira ntchito ntchito zosiyanasiyana zomwe zimagwiritsidwa ntchito, mongachiwerengero masamu.

Kusiyana kwakukulu pakati pa CPLD yayikulu ndi FPGA yaying'ono ndi kukhalapo kwa kukumbukira kosasunthika pa chip mu CPLD, komwe kumalola kuti ma CPLD agwiritsidwe ntchito "bootloader” ntchito, musanapereke ulamuliro ku zida zina zomwe zilibe zosungirako zokhazikika.Chitsanzo chabwino ndi pomwe CPLD imagwiritsidwa ntchito kuyika zosintha za FPGA kuchokera ku kukumbukira kosasunthika.^[1]

Kusiyanitsa[sinthani]

Ma CPLD anali gawo losinthika kuchokera ku zida zazing'ono zomwe zidatsogola,PLAs(kutumizidwa koyamba ndiSignetics), ndiPALs.Izi zinatsatiridwa ndimfundo zokhazikikazinthu, zomwe sizinapangitse dongosolo ndipo zidagwiritsidwa ntchito pomanga ntchito zomveka polumikiza zida zingapo (kapena mazana aiwo) palimodzi (nthawi zambiri ndi waya pa bolodi losindikizidwa kapena matabwa, koma nthawi zina, makamaka pakujambula, kugwiritsa ntchitokukulunga wayawaya).

Kusiyanitsa kwakukulu pakati pa zomangamanga za FPGA ndi CPLD ndikuti ma CPLD ali mkati motengerakuyang'ana matebulo(LUTs) pomwe ma FPGA amagwiritsa ntchitomidadada ya logic.